Zee-Babu type model with $U(1)_{L_\mu - L_\tau}$ gauge symmetry

TL;DR

This paper extends the Zee-Babu neutrino mass model by incorporating a $U(1)_{L___ au}$ gauge symmetry, leading to a predictive neutrino mass texture and enhanced testability at collider experiments.

Contribution

The paper introduces a novel extension of the Zee-Babu model with a local $U(1)_{L___ au}$ symmetry, simplifying the neutrino mass texture and relaxing lepton flavor violation constraints.

Findings

Predictive neutrino mass texture derived

Reduced constraints on lepton flavor violations

Potential for doubly-charged boson detection at colliders

Abstract

We extend the Zee-Babu model introducing local $U(1)_{L_\mu - L_\tau}$ symmetry with several singly-charged bosons. We find a predictive neutrino mass texture in a simple hypothesis that mixings among singly-charged bosons are negligible. Also lepton flavor violations are less constrained compared with the original model. Then we explore testability of the model focussing on a doubly-charged boson physics at the LHC and the ILC.